Here are some Extreme Warehouse Sale pros, lined up before the doors open.

What is it with us Midwesterners and our deal-bragging? You know: upon receiving a compliment we gloat about the gasp-worthy low price we got it for, unsolicited. Perhaps it’s because we fancy ourselves pro deal hunters.

But our Extreme Warehouse Sale 2011 this Saturday and Sunday is no Macy’s clearance rack. I’m talkin’ big-ticket items at huge discounts: you need to prepare a bit. The savings are so hot, all sales are final.

Luckily for you, I’ve compiled the secrets of the pros — tips that will prepare any appliance rookie for the big league.

Before the sale

Don’t be a fool; Use this tool.

Measure your space
Don’t learn the hard way: there is no “standard” in appliance sizes. Use a measuring tape on the available space — not the existing appliance — and write down dimensions to bring to the sale.

Also — and this is HUGE — measure the width of the doorways and staircases the appliance will need to travel through. Some door frames can be removed, but it’s often that someone buys a washer only to find it doesn’t fit down her narrow basement staircase.

Know your fuel type
This might seem obvious if you’re buying a cooking appliance like a range or cooktop (is it flat, coiled or does it have grates? Duh.). But you should double-check whether you have a gas or electric hookup when buying a dryer or oven.

Consider your hinges
For example, some refrigerators on sale will be left hinge only. Wouldn’t it be terrible to find a great deal on a fridge only to get it home and not be able to open it? Also know what side you want the hinges on a front-load washer and any type of dryer, in case there’s an option.

Do some research
We’ll have more than 2,000 appliances available at the start of the sale, so have something in mind to avoid frustration. The best tip? Know what you like and don’t like about your existing model. Check out our website for more ideas on what features are important to you.

The day of the sale

Bring a hauling vehicle
Usually, we offer free delivery on purchases $499 and above, but this sale is anything but usual. Our warehouse is full of products, so we encourage customers to take their purchases with them the day of the sale. We’ll help you load it up and everything.

If you do choose to have it delivered, it’s $75 and you must take delivery within 14 days.

Know your schedule
We’ll arrange for delivery and any installation for built-in appliances (available for additional charges) at the time of sale. We’ll call you the day before the delivery with an AM/PM estimate and our crew can call you before they arrive if you need to meet them at your house.

Pack a stroller
Our warehouse is a warehouse. It’s clean and safe, but it’s also big and crowded and without a play area. Strollers work well to keep small children nearby when you’re shopping the selection. We have coloring stations and movies once you get to checkout to keep meltdowns at bay.

After the sale

Apply for rebates
You could qualify for even more savings by rebate. Once you receive your product, you can fill in the serial number (the delivery crew can help you locate this) on your rebate forms and submit them promptly, as they expire.

Read your manual
Knowing your new product can help you save time and improve the quality of your cooking and cleaning. Stow it somewhere memorable to refer to for troubleshooting and general operation questions.
Don’t ignore accessories
If you get a dishwasher, buy rinse aid to help dry your dishes. If you buy a smooth-top electric range, you’ll want cooktop cleaner to keep it looking new. Your refrigerator water filter will need to be replaced every six to 12 months. And please, for the sake of your breathing, don’t overstuff your vacuum bags!